still ahead, the new embarrassment lance armstrong is facing from the olympic committee ahead of tonight's tell-all interview with oprah winfrey. a lawsuit that is going >> lance armstrong has been stripped of the bronze medal he won at the 2000 olympic games. they sent armstrong a letter asking him to run the medal hour s before an interview with oprah where he is expected to admit to doping. many former teammates will likely watch. >> he has been lying for years, lying to presidents, to larry king, to oprah before, he has been lying about how many tests he passed, 500 tests, he only took 250, lied about not seeing a known doping doctor. he lies about everything. so, now, to come out and actually change and say and admit he was doping during his career, it is a big step. >> armstrong lost his seven tour de france titles and faces lawsuits from former sponsors and possibly the government. >> san francisco's new ban on public nudity is being challenged today in federal court. the ban is set to go into effect next month. a lawsuit filed by four nudists in november is seeking an injunction ba